package com.lw.state;

/**
 * @author LW
 * @2020/8/17 16:21
 */
//观察线程的状态
public class TestState {


    public static void main(String[] args) throws InterruptedException {
        Thread thread = new Thread(()->{
            for (int i = 0; i < 5; i++) {
                try {//5秒钟的TIMED_WAITING
                    Thread.sleep(1000);//1秒十个    TIMED_WAITING
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                //等待完后输出
                System.out.println("/////");
            }

        });
        //观察状态
        Thread.State state = thread.getState();
        System.out.println(state);//NEW

        //观察启动后
        thread.start();//启动线程
        state = thread.getState();
        System.out.println(state);//RUNNABLE

        while (state!=Thread.State.TERMINATED){//只要线程不终止，就一直输出下去
            Thread.sleep(100);
            state = thread.getState();//更新线程状态
            System.out.println(state);//输出状态
        }
        //thread.start();//一个线程不能启动两次，死亡之后线程不能再次启动
    }
}
